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Q1. An electron moving parallel to the x axis has an initial speed of 3.70 × 10^6 m/s at the origin. Its speed is reduced to 1.40 × 105 m/s at the point x = 2 cm. compute the potential difference between the origin and that point. Which point is at the higher potential?

Q2. If the ball is released from rest at a height of 0.78 above the bottom of the track on the no-slip side, what is the angular speed when it is on the frictionless side of the track? Suppose the ball is a solid sphere of radius 3 and mass 0.14.

Q3. The heels on a pair of women's shoes have radii of 0.42cm at the bottom. If 32 percent of the weight of a woman weighing 580N is supported by each heel, find the stress on each heel.

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Category:- Physics
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